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450 ¡æ at the heating rate of 1¡æ/min and held at 450¡æ for
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the heating rate of 1 ¡æ/min. Thereafter, the temperature was
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was carried out in the atmosphere of highly pure nitrogen. The
gaseous products during the pyrolysis were purged by the
nitrogen at the flow rate of 10 mL /s.
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